gōa-ke-sun-á外家孫仔

wife's nephew

wife's nephew (wife's brother's son)

English Wiktionary, “外家孫仔” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%A4%96%E5%AE%B6%E5%AD%AB%E4%BB%94 · confidence: Medium (Wiktionary)